Abstract
A discussion is given of the basic operating characteristics and some applications of lithium-drifted silicon and germanium detectors for conversion-electron and gamma-ray spectroscopy. The following properties of Ge(Li) detector systems are reviewed: 1. Photopeak resolution; 2. Energy linearity and calibration; 3. Photopeak detection efficiency; 4. Compton scattering and 5. Pair production. In discussion of the relevance of these properties to the practical use of Ge(Li) and Si(Li) detector systems an attempt is made to place their advantages and disadvantages in perspective with respect to the properties of other important gamma-ray and electron spectrometer systems. Some measurements with Ge(Li) systems are discussed briefly, in the areas: 1. Decay scheme studies with radioactive isotopes; 2. In-beam spectroscopy; 3. Low temperature nuclear orientation; 4. Applied gamma-ray spectroscopy (activation analysis). The advantages of simultaneous use of Si(Li) and Ge(Li) detectors for electron-gamma spectroscopy is stressed and applications for measurements of 1. Internal conversion coefficients and 2. Electron-gamma angular distributions are reviewed.
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